Isaiah 3:15

“What mean ye, [that] ye beat my people to pieces, &c.] Reduce them to the utmost poverty; so the Targum, “wherefore do ye impoverish my people?” as they did by exacting tithes of all that they possessed; by requiring large sums for their long prayers; and by various traditions they enjoined them to observe: and grind the faces of the poor? either by smiting them on the cheek, as Christ, who became poor for our sakes, was smitten by them; or by bringing them into such low circumstances, by their exorbitant demands, that they had not sufficiency of food to eat; by which means their faces became pale, thin, and meagre: saith the Lord God of Hosts: who saw all their actions, and was able to…”

“What right have ye to beat, &c. (Psa 94:5; Mic 3:2-3). grind--by exactions, so as to leave them nothing. faces--persons; with the additional idea of it being openly and palpably done. "Presence," equivalent to "face" (Hebrew).”

“What mean ye - What is your object? Or, What advantage is it to you? Or, By what right or pretence do you do this? Beat my people to pieces - That is, that you trample on them; or cruelly oppress them; Psalms 94:5. And grind the faces of the poor - This is an expression also denoting great oppression. It is taken from the act of grinding a substance on a stone until it is worn away and nothing is left. So, by their cruel exactions, by their injustice to the poor, they exhausted their little property until nothing was left. The word “faces” here is synonymous with “persons” - or with the poor themselves. The word “face” is often used in the sense of “person;” Exodus 33:14; 2 Samuel 18:11. A…”

“3:15 The Lord cares for the poor. These were the marginalized and oppressed (see 1:17), but God is their protector (see 25:4). God called for his people to share his concern for the poor, but the Israelites were exploiting them to gain wealth (see 3:14).”

“What mean: Eze 18:2; Jon 1:6 ye beat: Isa 58:4; Exo 5:14; Amo 2:6, Amo 2:7, Amo 8:4-6; Mic 3:2, Mic 3:3 Isaiah 3:16”